Labaway



(No Model.) I

\ G. W. LARAWAY.

MAGHINERY POR MOLDING BARREL HEADS,

No. 808,616. Patented Deo. 2, 1884.

I v d Inventag;

UNTTEE STATES PATENT UEETCE,

GEOEGE WASHINGTON LAEAWAY, OE nAnTEoE-D, CONNEGTTCUT, ASSTGNOE,

BY MESNE ASSIGNMENTS, To HIMSELE, AND JOI-1N E. SETBERLTNG, OE AKRON, OHIO.

MACHINERY FOR IVIOLDING BARREL- HEADS.

.SPECIFICATION forming part of Letters Patent No. 308,6167 dated December 2, 1884.

Application led January 28, 1884. Renewed November 3,1884. (No model.)

To all whom, t may concern: by a belt from a suitable motonwill causethe 5o Be it known that I, GEORGE WASHINGTON shaftl and its screw-propeller and lantern- LARAWAY, ofthe city and county of Hartford, pinion to be revolved. Each molding-cylinin the State or Connecticut, have invented a der C has a mouth, p, leading vertically out 5 new and useful Improvement in Machinery of it, to enable a mold-carrying drawer, I, to

for Molding Barrel-Heads or Devices of Like be inserted in and removed from the cylinder 5 Character from Paper-Pulp; and `I do hereby as occasion-may require. Vithin the said declare the same to be described in the fol drawer is the barrel-head female die K, the lowing specification and represented in the drawer around and concentric with the mold io accompanying drawings, of which- X being chambered, as shown at q, to receive Figure `l is a top view, (in which certain steam or heated air for heating it for drying 6o parts to be described are represented in horithe barrel-head. Each plunger D carries a zontal section,)and Fig. 2 a vertical and transmale die, L, for forming, with the next adjaverse and median section, of a machine einjacent female die, K, a barrel-head.

I 5 bodying my invention, the nature of which is M andN are standards or posts for supportdeiined in the claims hereinafter presented. ing the Vat and hydraulic press. 63

In such drawings, A denotes a hydraulic In the bottom of the cylinder G is an openpress provided with aseres of four cylinders, ing, r, provided with a gate, s, such opening a, leading radially out of a common central leading into an educt, Q, for discharging` the 2o chamber, b, and each having a piston, c. Wapulp, as occasion may require, into a cistern ter, on being forced into the chamber through situated below the floor on which the machine 7o an induct, d, by a force-pump, will, on the `may rest. chamber being filled, cause the several pis- The operation of the machine may be thus tons to move simultaneously and rectilinearly explained In the first place, all the pistons of in their cylinders. Surrounding the hydraulic the hydraulic press having been driven back press so made is a strong ring, B, for sustainby water forced into each of the cylinders of 7 5 ing the several molding-cylinders C, whose such pistons, or by any other suitable means, pistons or plungersD are affixed to the rods of the gate a is to be opened, so as to allow the the pistons c. Each molding-cylinder C opens pulp to pass into the cylinder G. The screwby a port or conduit, f, into a closed annular propeller, being in revolution, will force the vat, E, arranged beneath the hydraulic .press pulp into the vat, which, becoming filled, the 8o and the said molding-cylinders. XVithin the pulp will be driven from it through the ducts vat is a rotary annular agitator, F, composed f upward into the mold-cylinders and between of a ring, g, and a series of arms, h, extendthe molding dies of each of such cylinders.

ing upward from it, the said ring being pro- On the molding-cylindersbecomingsufliciently vided with a circular range of teeth, t', to encharged with the pulp, the gate a is to be 85 gage ,with a lantern-pinion, k, fixed on ashaft, closed and the hydraulic press set in opera- Z. The said shaft Z goes lengthwise through a tion, so as to advance simultaneously all the cylinder, G, provided at its closed end witha pistons, and thereby cause the pulp in the .4o stuffing-box, w, to receive such shaft, such molding-cylinders to be compressed between cylinder opening at its inner end into the anand by the molding-dies. Next, the gate .s is 9o nular vat. The shaftZ has a screw-propeller, to be opened, so as to draw off the pulp suffi- H, on it, as shown.` A pipe, m, providedwith ciently to enable the mold-pistons to be rea gate, mextends upward from and opens into tracted without pulp owing into the moldingthe cylinder G, and serves to convey the pacylinders during such retraction. A

per-pulp from a reservoir of such into the cyl- For discharge oi' water from the molds, the 9 5 inder. dies thereof are usually perforated or provided On the outer end of. the shai'tl is a drivingwith suitable ducts. f wheel or pulley, o, which, on being revolved After the barrel-heads may have been molded, as explained, the female die-drawers are to be removed from the machine and subjected to heat or other means for drying the barrel-heads in them.

The agitator is to keep the pulp in the vat properly stirred, in order to prevent settling of the heavier portions thereof.

I do not confine the hydraulic press of my machine to four cylinders and their pistons, as it may have any suitable number thereof, each piston being to operate the piston or plunger of a molding-cylinder provided with dies, as set forth.

Y 1. The combination of the pulp-receiving vat and the rotary agitator therein, having mechanism for operating such agitator, as set forth, with the hydraulic press and the series of mold-cylinders and their pistons, provided with or adapted to support dies for molding articles from paper-pulp, each molding piston or plunger being fixed to a pistou of the hydraulic press, and all being to operate substantially as represented.

2. The combination of the pulp receivingvat and the rotary agitator therein, having mechanism for revolving it, with the hydraulic press and the series oi" mold-cylinders, their pistons, and encompassing and supporting ring, such mold-cylinders and pistons being` provided with or adapted to support dies, and all being arranged substantially and to operate as and for the purpose represented.

3. The combination of the rotary propeller and its cylinder, having the induct and educt and their gates, as described, with the annuA lar vat, its rotary agitator, and mechanism for revolving such agitator and propeller, and with the hydraulic press and the series of mold-cylinders and their pistons, provided with or adapted to support dies, all being substantially and for the purpose as represented.

4. The combination of the rotary propeller and its cylinder, having the induct and educt and their gates, as described, with the annular vat, its rotary agitator, and mechanism for revolving such agitator and propeller, and with the hydraulic press and the series of mold-cylinders and their supporting and encompassing ring and their pistons, such cylinders and pistons having or being adapted to support dies, as explained, and such pistoni being connected with those of the hydraulic press, so as to be operated thereby, all being substantially and for the purpose as set forth.

5. Each female die-drawer chambered to receive steam or heated air for heating the drawer for the purpose of drying a barrelhead When in the moldingdie ot' such drawer.

GEORGE WASHINGTON LARAWAY.

\Vitnesses:

R. I-I. EDDY, E. B. PRATT. 

